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Exactly how many minute is it before seven o'clock,if 40 minute ago it was three times as many minutes past two o'clock?

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Exactly how many minutes is it before seven o'clock, if 40 minutes ago it was three times as many minutes past two o'clock?

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posted Aug 24, 2015 by Parampreet Kaur

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1 Answer

+1 vote

65 minutes before 7 o'clock.
The difference between 2 and 7 o'clock is 5 hours = 300 minutes.
The time is x minutes to 7 -> 300 - x
40 minutes ago it was 3*x minutes past 2 -> 3 * x = (300 - x) - 40
This gives: 4 * x = 260 -> x = 65 minutes.
The time is 65 minutes to 7 -> 5:55

answer Aug 25, 2015 by Jcm
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